High density polyethylene (Eltex) fuel tanks for fixed installation. In compliance with R.I.Na/CE regulations. Horizontal and vertical models. The inspection porthole is supplied complete with cap with air vent, fuel pick up, 3/8″ hose connector for air vent. Moreover it is fitted for the installation of electric or mechanical fuel level sender. 1/4″ hose connector for a second fuel pick up for twin engine or diesel for fixed installation.